Mixer

1. A mixer comprising: a plurality of input channel adjustment units that adjust sound quality or gain of audio signals that are inputted to each of the input channel adjustment units, so that each input channel adjustment unit outputs a main system signal and a plurality of MIX send signals; a main system bus that mixes the main system signals that are outputted from the input channel adjustment units; a plurality of MIX buses that mix the MIX send signals that are outputted from the input channel adjustment units; a main system output adjustment unit that adjusts the sound quality or gain of mixed result by the main system bus, and outputs a main system output signal as adjusted result; a MIX output adjustment unit that adjusts the sound quality or gain of mixed results by the MIX buses, and outputs MIX output signals as adjusted results; and an output patch unit that assigns the main system output signal and the MIX output signals to a plurality of output ports, wherein each input channel adjustment unit comprises: a main system unit that generates the main system signal; and a plurality of MIX send units that generate the plurality of the MIX send signals, wherein each main system unit comprises: a filter unit that performs a filtering process of the audio signal inputted to the input channel adjustment unit; a main system gain adjustment unit that adjusts the gain of the audio signal that is outputted from the filter unit; and a main system ON/OFF unit that switches ON state or OFF state for controlling whether or not to supply the audio signal that is outputted from the main system gain adjustment unit to the main system bus, and wherein each MIX send unit comprises: a signal selection unit that selects an audio signal from a plurality of audio signals being involved in the main system unit and including at least an audio signal to be inputted to the filter unit and an audio signal to be inputted to the main system gain adjustment unit; a linked gain setting unit that applies a gain that increases or decreases in linking with the gain of the main system gain adjustment unit, to the audio signal that is selected by the signal selection unit; and a linked ON/OFF unit that sets ON state or OFF state of the audio signal that is selected by the signal selection unit in linking with the ON state or OFF state of the main system ON/OFF unit; wherein the ON state or OFF state that is set by the linked ON/OFF unit is the same as the ON state or OFF state that is set by the main system ON/OFF unit, and the gain set by the linked gain setting unit is the same as the gain that is set by the main system gain adjustment unit, wherein each MIX send unit further comprises: an independent ON/OFF unit that sets ON state or OFF state independently of the ON state or OFF state of the linked ON/OFF unit; and an independent gain setting unit that sets a gain independently of the gain of the linked gain setting unit, wherein the MIX send signal is placed in the ON state when both the independent ON/OFF unit and the linked ON/OFF unit are in the ON state, and is placed in the OFF state when at least one of the independent ON/OFF unit and the linked ON/OFF unit is in the OFF state, and wherein the gain applied to the MIX send signal is a combined value of the gain set by the independent gain setting unit and the gain set by the linked gain setting unit.

2. A mixer comprising: a plurality of input channel adjustment units that adjust sound quality or gain of audio signals that are inputted to each of the input channel adjustment units, so that each input channel adjustment unit outputs a main system signal and a plurality of MIX send signals; a main system bus that mixes the main system signals that are outputted from the input channel adjustment units; a plurality of MIX buses that mix the MIX send signals that are outputted from the input channel adjustment units; a main system output adjustment unit that adjusts the sound quality or gain of mixed result by the main system bus, and outputs a main system output signal as adjusted result; a MIX output adjustment unit that adjusts the sound quality or gain of mixed results by the MIX buses, and outputs MIX output signals as adjusted results; and an output patch unit that assigns the main system output signal and the MIX output signals to a plurality of output ports, wherein each input channel adjustment unit comprises: a main system unit that generates the main system signal; and a plurality of MIX send units that generate the plurality of the MIX send signals, wherein each main system unit comprises: a filter unit that performs a filtering process of the audio signal inputted to the input channel adjustment unit; a main system gain adjustment unit that adjusts the gain of the audio signal that is outputted from the filter unit; and a main system ON/OFF unit that switches ON state or OFF state for controlling whether or not to supply the audio signal that is outputted from the main system gain adjustment unit to the main system bus, and wherein each MIX send unit comprises: a signal selection unit that selects an audio signal from a plurality of audio signals being involved in the main system unit and including at least an audio signal to be inputted to the filter unit and an audio signal to be inputted to the main system gain adjustment unit; a linked gain setting unit that applies a gain that increases or decreases in linking with the gain of the main system gain adjustment unit, to the audio signal that is selected by the signal selection unit; and a linked ON/OFF unit that sets ON state or OFF state of the audio signal that is selected by the signal selection unit in linking with the ON state or OFF state of the main system ON/OFF unit; wherein the MIX send unit further comprises: a link ON/OFF selection unit that sets effective state or non-effective state of the linked ON/OFF unit; and a link gain selection unit that sets effective state or non-effective state of the linked gain setting unit.

3. A mixer comprising: a plurality of input channel adjustment units that adjust sound quality or gain of audio signals that are inputted to each input channel adjustment unit so that each input channel adjustment unit outputs a main system signal, a direct out signal and a plurality of MIX send signals; a main system bus that mixes the main system signals that are outputted from the input channel adjustment units; a plurality of MIX buses that mix the MIX send signals that are outputted from the input channel adjustment units; a main system output adjustment unit that adjusts the sound quality or gain of mixed result by the main system bus, and outputs a main system output signal as adjusted result; a MIX output adjustment unit that adjusts the sound quality or gain of mixed results by the MIX buses, and outputs MIX output signals as adjusted results; and an output patch unit that assigns the main system output signal, the MIX output signals and the direct out signal to a plurality of output ports, wherein each input channel adjustment unit comprises: a main system unit that generates the main system signal; a plurality of MIX send units that generate the plurality of the MIX send signals; and a direct out setting unit that generates the direct out signal, wherein each main system unit comprises: a filter unit that performs a filtering process of the audio signal inputted to the input channel adjustment unit; a main system gain adjustment unit that adjusts the gain of the audio signal that is outputted from the filter unit; and a main system ON/OFF unit that switches ON state or OFF state for controlling whether or not to supply the audio signal that is outputted from the main system gain adjustment unit to the main system bus, and wherein each direct out setting unit comprises: a signal selection unit that selects an audio signal from a plurality of audio signals that are involved in the main system unit and that include at least an audio signal to be inputted to the filter unit and an audio signal to be inputted to the main system gain adjustment unit; a linked gain setting unit that applies a gain that increases or decreases in linking with the gain of the main system gain adjustment unit, to the audio signal that is selected by the signal selection unit; and a linked ON/OFF unit that sets ON state or OFF state of the audio signal that is selected by the signal selection unit in linking with the ON state or OFF state of the main system ON/OFF unit; wherein the ON state or OFF state that is set by the linked ON/OFF unit is the same as the ON state or OFF state that is set by the main system ON/OFF unit; and the gain set by the linked gain setting unit is the same as the gain that is set by the main system gain adjustment unit, wherein each direct out setting unit comprises: an independent ON/OFF unit that sets ON state or OFF state independently of the ON state or OFF state of the linked ON/OFF unit; and an independent gain setting unit that sets a gain independently of the gain of the linked gain setting unit, wherein the ON state or OFF state of the direct out signal is placed in the ON state when both the independent ON/OFF unit and the linked ON/OFF unit are in the ON state, and is placed in the OFF state when at least one of the independent ON/OFF unit and the linked ON/OFF unit is in the OFF state, and wherein the gain applied to the direct out signal is a combined value of the gain set by the independent gain setting unit and the gain set by the linked gain setting unit.

4. A mixer comprising: a plurality of input channel adjustment units that adjust sound quality or gain of audio signals that are inputted to each input channel adjustment unit so that each input channel adjustment unit outputs a main system signal, a direct out signal and a plurality of MIX send signals; a main system bus that mixes the main system signals that are outputted from the input channel adjustment units; a plurality of MIX buses that mix the MIX send signals that are outputted from the input channel adjustment units; a main system output adjustment unit that adjusts the sound quality or gain of mixed result by the main system bus, and outputs a main system output signal as adjusted result; a MIX output adjustment unit that adjusts the sound quality or gain of mixed results by the MIX buses, and outputs MIX output signals as adjusted results; and an output patch unit that assigns the main system output signal, the MIX output signals and the direct out signal to a plurality of output ports, wherein each input channel adjustment unit comprises: a main system unit that generates the main system signal; a plurality of MIX send units that generate the plurality of the MIX send signals; and a direct out setting unit that generates the direct out signal, wherein each main system unit comprises: a filter unit that performs a filtering process of the audio signal inputted to the input channel adjustment unit; a main system gain adjustment unit that adjusts the gain of the audio signal that is outputted from the filter unit; and a main system ON/OFF unit that switches ON state or OFF state for controlling whether or not to supply the audio signal that is outputted from the main system gain adjustment unit to the main system bus, and wherein each direct out setting unit comprises: a signal selection unit that selects an audio signal from a plurality of audio signals that are involved in the main system unit and that include at least an audio signal to be inputted to the filter unit and an audio signal to be inputted to the main system gain adjustment unit; a linked gain setting unit that applies a gain that increases or decreases in linking with the gain of the main system gain adjustment unit, to the audio signal that is selected by the signal selection unit; and a linked ON/OFF unit that sets ON state or OFF state of the audio signal that is selected by the signal selection unit in linking with the ON state or OFF state of the main system ON/OFF unit; wherein the direct out setting unit further comprises: a link ON/OFF selection unit that sets effective state or non-effective state of the linked ON/OFF unit; and a link gain selection unit that sets effective state or non-effective state of the linked gain setting unit.